膨胀土试验中有荷膨胀率取值的初探

初步提出了在进行膨胀试验时，有关有荷膨胀率试验参数的取值，以及特殊情况下膨胀率和某些参数的计算方法，从而反映膨胀土的特性，使设计人员有效的分析膨胀土地基变形。

Preliminary Discussions on Loaded Swelling Rate Value in Expanded Clay Test

Expanded clay indicates that the clay contains a large amount of clay mineral components, and influenced by the environmental moisture variation,the clay brings about strong swelling and compression depression and the swelling stress is produced. The main clay mineral components are montmorillonite-illite, or illite-montmorillonite. The mineral that impact on the expansivity of clay is montmorillonite. When the swelling test is underway,the author advances the value of the concerned loaded swelling rate testing parameters,the swelling rate on some particular occasions and the calculating methods of some parameters in an aim of revealing the properties of the expanded clay, and an effective analysis of foundation deformation for the expanded clay for the designing experts.